Discount & Sale Price Calculator
Calculate discount amount, sale price, and savings percentage quickly. Perfect for shopping deals.
Original Price + Discount %
Original + Sale Price
About this calculator
A sale tag shows a percentage, but what you want to know is the price you pay and the money you keep. The Discount and Sale Price Calculator answers both. Enter the original price and the discount to get the discount amount and the sale price, or enter the original and sale prices to find the discount percentage.
It is the quickest way to check whether a deal is really a deal, especially with stacked offers where the second discount applies to the already reduced price. A 20% and a further 10% off is 28% off, not 30%.
How to use it
- For a percentage discount, enter the Original Price and Discount % in the first box.
- Press Calculate to see the discount amount, the sale price and the saving.
- To find the percentage from two prices, enter the Original Price and the Sale Price in the second box and press Calculate.
Formulas
Discount amount = Original × Discount % ÷ 100 and Sale price = Original − Discount amount. To find the discount from two prices: Discount % = (Original − Sale) ÷ Original × 100. Two successive discounts d1 and d2 combine as 1 − (1 − d1)(1 − d2), which is always less than d1 + d2.
Worked example
An item priced ₹2,000 with 25% off
| Discount amount | ₹500 |
| Sale price | ₹1,500 |
| You save | 25% |
| Price after a further 10% off | ₹1,350 |
| Combined discount | 32.5% |
The second 10% takes ₹150 off the already reduced ₹1,500, not ₹200 off the original, so the total saving is ₹650 rather than ₹700.
Tips and common mistakes
- Compare the sale price with the usual price elsewhere. A discount from an inflated list price is not a saving.
- Stacked discounts multiply, they do not add.
- GST is usually charged on the sale price, so the tax is lower too.
- Watch for minimum purchase conditions and shipping fees that eat the saving.
- Use the reverse calculation to find the real discount when a seller quotes only two prices.
Frequently asked questions
How do I calculate a discount?
Multiply the original price by the discount percentage and subtract the result from the price.
How do I find the original price from the sale price?
Divide the sale price by 1 minus the discount rate. A ₹1,500 price after 25% off came from ₹1,500 ÷ 0.75 = ₹2,000.
What is 20% off 10% off?
Together they give 28% off, because the second discount applies to the reduced price.
How do I find the discount percentage?
Divide the amount saved by the original price and multiply by 100.
Is GST charged before or after the discount?
On the discounted selling price, in most cases.
Does the calculator work for any currency?
Yes. The figures are in rupees but the maths is the same everywhere.